MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Types of Salts

A white solid...

Question

A white solid is either ${N a}_{2} O$ or ${N a}_{2} O_{2}$ . A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.

The white solid is identified as ____

A

N a_{2} O_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

N a_{2} O_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

N a_{2} O_{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

N a_{2} O_{5}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $N a_{2} O_{2}$
The white solid is $N a_{2} O_{2}$ . A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of $N a_{2} O_{2}$ This indicates the bleaching action which is due to formation of hydrogen peroxide.
$N a_{2} O_{2} + 2 H_{2} O ⟶ 2 N a O H + H_{2} O_{2}$
If $N a_{2} O$ is present instead, then its aqueous solution would turn red litmus blue due to formation of NaOH
$N a_{2} O + H_{2} O ⟶ 2 N a O H$ (blue towards litmus).

Suggest Corrections

thumbs-up

0

Similar questions

Q. A white solid is either Na

_{2}

_{2}

_{2}

. A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.
The molecular mass of the substance is:

A white solid is either

N a_{2} O

N a_{2} O_{2}

. A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.

The given substance is

N a_{2} O

If the statement is true, enter 1 else enter 0.

Q. A white solid is either

N a_{2} O

N a_{2} O_{2}

. A peace of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.If true enter 1 else 0.

Q. Colourless solid (A)

△ ⟶

(B) (gas) + (C) (gas). Aqueous solutions of (A) and (B) turn blue litmus red, while that of (C) turns red litmus blue. Aqueous solutions of (A) and (B) also give white precipitate with

A g N O_{3}

solution, which is soluble in aqueous solution of (C). (A), (B) and (C) in correct order are :

When a red litmus paper is dipped in the aqueous solution of $X$ there is no change in colour.
When a blue litmus paper is dipped in the same solution it turns red.
Which among the following options can be the chemical $X$ ?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Types of Salts

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon